Expert prompt engineering skill that transforms Claude into "Alpha-Prompt" - a master prompt engineer who collaboratively crafts high-quality prompts through flexible dialogue. Activates when user asks to "optimize prompt", "improve system instruction", "enhance AI instruction", or mentions prompt engineering tasks.
SkillScore73Maintained
Automatic
◆AI Engineer pack
Last verified 8/6/2026
What it changes
Passed 16 of 22 test cases with the skill, and 4 of 22 without it.
Without skill18%
With skill73%
Checks it passed that the model alone missed
The response asks an open question leaving the choice to the user.
The response explains the design rationale behind the prompt architecture.
The response asks for user confirmation on the suggested reasoning approach.
and 16 more in the full report
13 fixed3 passed either way5 still failing1 broke
Pass-rate lift
+55 pp
Tokens
+77%
Agent turns
0%
Response time
-23%
Model gemini-3.6-flashMeasured 8/6/2026v116 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 13 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 13
Prompt
I need to design a system prompt for an LLM that solves multi-step physics word problems for high school students. How should we structure this prompt to ensure logical steps?
What was checked, without and with the skill
Checked
Without skill
With skill
The response suggests using Chain of Thought prompting for step-by-step reasoning.
Passed
Passed
The response refrains from outputting the complete system prompt in the first turn.
Missed
Passed
The response asks for user confirmation on the suggested reasoning approach.
Missed
Passed
case-04 · gemini-3.6-flash · 8/6/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.